KR100865794B1 - Water Supply Information Integrate Management Method using USN - Google Patents

Abstract

The present invention relates to a method for managing integrated information of water supply facilities of waterworks and sewage. An object of the present invention is to provide a USN-based integrated water information management method for configuring a network using sensors that communicate wirelessly, and observes and transmits the facility information of the water facilities and the water resource information of the facilities in real time from the sensor network. have.

USN-based integrated water management method according to the present invention, a) USN (Ubiquitous Sensor Network) communication node that periodically transmits a signal includes a sensor module that is fixedly attached to a water facility and assigned a unique tag ID to distinguish individually Measuring water resource information by; b) collecting signals transmitted from at least one USN communication node by a USN gateway ; c) performing calculation on the water resource information transmitted from the USN gateway by a central control center to calculate the water resource information on the location of the water facility in real time, and storing and managing the calculated information; Characterized in that comprises a. Also, d) checking the signal of the USN gateway and information transmitted from the central control center by the mobile communication terminal ; Characterized in that further comprises.

At this time, the central control center receives the signal of the USN gateway, the mobile communication terminal is at least selected from the CDMA network, WDMA network or LAN network as a means for receiving the signal of the gateway and information of the central control center It is preferable to use either one. In addition, a signal is transmitted between each of the USN communication node, the USN communication node, and the USN gateway through an ad-hoc network or a mesh network technology.

Ubiquitous, USN, Water Supply, Sewage, Water Facility, Water Resources Information

Description

Water Supply Information Integrate Management Method using USN

1 is a conceptual diagram of one embodiment of a water information integrated management method according to the present invention.

2 is a conceptual view illustrating the operation principle of a USN (Ubiquitous Sensor Network).

3 is a conceptual diagram of another embodiment of the integrated water management method according to the present invention.

** Description of the symbols for the main parts of the drawings **

110: USN communication node 120: USN gateway

200: water supply facilities

210: water pipe 220: other equipment

300: central control center 400: mobile communication terminal

The present invention relates to a method for managing integrated information of water related facilities of waterworks and sewerage. Conventionally, management of various water-related facilities has been performed in a manner in which a person in charge visits and checks the facilities directly. More specifically, a person in charge of a specific facility visits the facility, researches various items on the facility by item, fills in the form, and collects the information surveyed by each person in charge. It became. However, this method is not only a primitive method that requires very low accuracy and reliability of information, and requires a lot of manpower and time, but also causes more than 150 cases of after-care problems per year due to frequent replacement and inadequate perception of business personnel. It is happening.

Of course, in order to solve such problems at present, the conventional national water resource management comprehensive information system and the integrated water supply information system have been used. Conventional national water resource management comprehensive information system is a system that systematically researches and observes information related to water resources, and performs services such as collection, management, analysis, and policy support through the establishment of integrated DB and various information systems. The integrated information system is established in connection with the National Geographic Information System (NGIS) as a system to promote the scientific and systematic management of wide-area water supply and industrial water supply facilities, and to proactively cope with natural or artificial damage of various underground facilities. However, these systems have a problem in that it is difficult to construct and utilize systematic and standardized data necessary for establishing a real-time management system. Such poor maintenance of water-related facilities can increase the incidence of accidents due to lack of safety measures, not only can not effectively respond to disasters, but also make the damages of disasters worse, and also neglect illegal use. It causes a lot of problems such as problems that occur, environmental pollution.

In the case of foreign countries, the Golden Gate Bridge management project led by UC Berkeley University attached the Golden Gate Bridge to sensors that measure vibration, temperature, pressure, acceleration, and water level to manage river facilities. Collect relevant information, manage disasters in the event of an emergency, send alarms to the central control center, and check the stability of the Golden Gate Bridge in real time through various measurement results for disaster prevention purposes. There is a case where a system is managed. In addition, at the Java One Conference 2005 held in San Francisco in July 2005, a team of industry-academia researchers at the University of San Francisco demonstrated the development of a sensor network to measure water quality. However, there are no examples of establishing a ubiquitous system related to water resources for efficient water resource management at national level.

There are many problems in the current water resource management method. First, prior to the problem of measurement itself, in the safety management of each water facility itself, there was a problem in that the work is distributed by measuring water resource information and safety management separately. Therefore, the safety management of the water facilities themselves could not be efficiently carried out, so they could not respond quickly to damage or destruction of the water facilities. In addition, water facilities include expensive structures such as water meters, water meters, and satellite communication equipment, as well as buildings such as water, embankments, and drainage stations. These expensive facilities are not only damaged or destroyed as described above, but are also a risk of theft. There was a problem that there was no countermeasure against this.

In addition, many problems have been pointed out in the method of directly measuring the water resource information. First, in terms of measurement, the measurement source is made to computerize the measurement record and then computerized it, there is a problem that manpower is wasted or work is heavy. Second, in terms of the accuracy of the data, there is a possibility that an error may occur in the process of computerizing the manual measurement record, and as described above, if the computerized work is outsourced, unnecessary data metabolism may occur. do. Third, in terms of data retrieval, it is very difficult for a conventional system to collect necessary data for a specific purpose desired by a user, and the data retrieval and retrieval work is not only dependent on a subcontractor. Difficulties in retrieval create additional problems that slow response to complaints. Fourth, in terms of administrative efficiency, the time for collecting and processing data is very long. Finally, in the informatization problem, there is no management system and information DB that can efficiently promote the maintenance work of national water facilities.

Therefore, in order to solve the various problems as described above, in order to strengthen the competitiveness of the national technology and preoccupy the technology, the introduction of a water resource-related ubiquitous system capable of efficient, systematic and real-time management is urgently needed.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to provide a USN (Ubiquitous Sensor Network) based water information integrated management method. More specifically, the USN-based water information integrated management method for constructing a network using sensors that communicate by wire and wireless, and observing and transmitting facility information of water facilities and water resource information of the corresponding facilities in real time from the sensor network. In providing.

USN-based integrated water management method of the present invention for achieving the object as described above, a) is fixedly attached to the water facilities and given a unique tag ID includes a sensor module that can be discriminated individually to periodically transmit a signal Measuring water resource information by a Ubiquitous Sensor Network (USN) communication node ; b) collecting signals transmitted from at least one USN communication node by a USN gateway ; c) performing calculation on the water resource information transmitted from the USN gateway by a central control center to calculate the water resource information on the location of the water facility in real time, and storing and managing the calculated information; Characterized in that comprises a. In addition, d) checking a signal of the USN gateway and information transmitted from the central control center by a mobile communication terminal ; Characterized in that further comprises. At this time, the central control center receives the signal of the USN gateway, the mobile communication terminal is at least selected from the CDMA network, WDMA network or LAN network as a means for receiving the signal of the gateway and information of the central control center It is characterized by using any one.

In addition, the USN gateway is characterized in that at least one or more is installed for a single water facility.

A signal is transmitted between the USN communication node, the USN communication node, and the USN gateway through an ad-hoc network or a mesh network technology. At this time, each USN communication node and the distance between the USN communication node and the USN gateway is preferably 50m or less.

The USN communication node is characterized in that at least one or more is installed for the single USN gateway.

The USN communication node and the USN gateway may include at least one power supply means selected from a solar cell, a PoE (Power of Ethernet), an electric line, a battery, or a rechargeable battery.

In addition, the water resource information is a facility information including at least one selected from the illuminance, temperature, humidity, vibration or ultrasonic state of the water facility, and the measurement time and flow rate, flow rate, water level, water temperature, water pressure, turbidity or specific of the water supply It is preferable to include the observation information further comprises at least one selected from the concentration of the substance, and the water resource information is periodically transmitted and stored, characterized in that the cycle can be programmed differently according to the user's purpose do.

Hereinafter, the USN-based water information integrated management method according to the present invention having the configuration as described above will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram of a water management information management method according to the present invention. A Ubiquitous Sensor Network (USN) communication node 110 is attached to a water facility 200, which includes a water pipe 210 and other equipment 220 in a valve chamber, as shown. The USN communication node 110 can be divided into water information, zoom information, and facility information observed by the observation, the USN communication node 110 to the water observation information has an individual identification information. Facility information for observing the illuminance, temperature, humidity, vibration, ultrasonic state, etc. of the water supply facility 200 is to measure the condition of the water supply facility 200 itself, flow rate, flow rate, water level, water temperature, water pressure, Observation information for observing the turbidity, the concentration of a specific material according to the measurement time is to measure the state of the water itself contained in the water pipe (210). In order to manage the condition of the water supply and drainage facility 200 of the water supply and sewage system, it is important to check the water quality of the water itself flowing in the water pipe 210, but the water pipe 210 itself is old. It should be possible to observe from time to time whether there are any leaks. By measuring the facility information, the USN communication node 110 can observe the degree of aging and leakage of the water pipe 210 itself, and whether the appropriate amount of water is supplied (in the case of water supply) by measuring the observation information. For example, it is possible to easily grasp various information such as whether the water quality of the supplied water is appropriate and the flow rate of water (in the case of sewage) does not exceed the capacity of the water pipe or the sewage treatment plant. Of course, at this time, since each of the USN communication nodes 110 does not need to be able to measure all of the above-described physical quantities, each USN communication node 110 according to the user's purpose is a single or a small number of specific physical quantities You just need to be able to measure it. For example, in the case of running water, it is very important to measure the water quality, so each USN communication node 110 installed in the water pipe 210 of the running water has a water quality measurement function for measuring observation information such as turbidity and concentration of a specific substance. It must be present, but in the case of sewerage, it is not necessary to measure the water quality, so it is not necessary to have a water quality measurement function. In another example, since the aging rate of the water pipe 210 is relatively slow because water of good quality is distributed in the case of tap water, the measurement of the degree of aging of the water pipe 210 is performed in all USNs installed in the water pipe 210 of the tap water. Since it is not necessary to be provided in the communication node 110, a function for measuring facility information such as vibration and ultrasonic state that may be used to measure the degree of aging may be provided one by one, but in the case of sewage, relatively bad water quality. Since the water is circulated, it is preferable to allow all USN communication nodes 110 installed in the sewer pipe 210 to measure the degree of aging of the water pipe 210. As described above, the USN communication nodes 110 need not all have the same function, and it is preferable to measure the physical quantity required according to the user's purpose and convenience.

In addition, the USN communication node 110 may measure the state of the water pipe 210 as well as other equipment 210. At this time, the other equipment 220 includes a variety of equipment provided in the valve chamber, such as measuring equipment, such as a water meter or flow meter, satellite communication equipment, RTU. (RTU is an input channel for signal detection or measurement, an output channel for control and indication and warning, and a communication port, which collects data from a remote location and converts the data into a format that can be transmitted. It also collects information from the main unit and performs a series of operating procedures directed at the main unit These other equipment 220 are often expensive equipment and often cannot have a maintenance staff in the valve room. Therefore, there is a risk of theft, as well as damage, destruction, failure, etc. Therefore, the USN communication node 110 attached to the other equipment 220 is facility information such as illuminance, temperature, humidity, vibration, ultrasonic state, etc. of the other equipment 220. Collecting and measuring them will prevent damage, destruction, breakdown and theft of the other equipment.

The measured water resource information is transmitted and stored periodically, but the shorter the period, the greater the accuracy of the information on time, but the capacity of the database should be increased. Since the period can be saved, it is preferable that the period can be programmed differently according to the purpose of the user.

As shown in FIG. 2 (A), the USN communication nodes 110 installed at multiple points of a single facility may have all the performances to enable long distance communication, but in this case, the manufacturing of each USN communication node 110 may be performed. The cost is very high. In addition, since a plurality of USN communication nodes 110 are installed in a single facility as described above, when each USN communication node 110 transmits signals to the central control center 300, which USN communication in the central control center An error such as classifying whether a signal transmitted from the node 110 is a signal of a USN communication node 110 installed in a facility, and whether there is a missing signal for a specific time among the signals of the USN communication node 110 for the facility More work is required, such as searching and receiving signals from numerous USN communication nodes 110 at once, and more troublesome tasks are generated, so that the central control center 300 facilities must be improved. As a result, the installation costs are further increased. Therefore, it is preferable to collect a single signal to the central control center 300 for a single facility. For this reason, each USN communication node 110 installed in a single facility is capable of transmitting signals to each other within a short distance to form an ad-hoc network, and a single (or multiple, if necessary) for a single facility. The USN gateway 120 may collect signals of each of the USN communication nodes 110 to transmit signals over a long distance, ie, a wireless network such as CDMA or WDMA, or a wired network such as a LAN.

The USN communication nodes 110 are connected to each other by an Ad-hoc network (Mesh network) or a CDMA network as described above. Ad-hoc network configuration technology is a technology that allows a wireless communication environment to be automatically established by simple installation even without a separate network equipment. 2 (B) simply illustrates the operation principle of the ad hoc network construction technology. The USN communication node 110 using the ad-hoc network can communicate with the communication node if the distance from other communication nodes is within the reference. In the present invention, when the USN communication node 110 communicates wirelessly, the reference distance is designed to be about 50m, but the USN communication node 110 is designed differently so that the communication distance is set differently according to the purpose and need. Also, the USN communication node 110 or the USN gateway 120 may communicate by wire (when communicating by wire, there is no limitation of the reference distance). As shown in FIG. 2B, when the USN communication node 110 tries to communicate with the USN gateway 120 that is outside the reference distance, the signal is first transmitted to B having a distance from the A within the reference distance. Since the distances between B and C, C, D, D, and USN gateway 120 are all within a reference distance, signals transmitted from A may pass through B, C, and D in turn to reach USN gateway 120. It becomes possible. As described above, the ad-hoc network technology enables communication over a long distance by installing each communication node at a distance less than a reference distance within a short distance without special network facilities. It is designed to communicate with each other using a network constructed autonomously, so that it does not need a network facility that acts as an intermediary such as a base station and an access point. Not only can it be installed quickly, but only USN communication nodes and gateways can be installed, which can economically reduce the installation cost. In addition, the USN module 100 is preferably supplied with power through a power supply means such as a solar cell, a Power of Ethernet (PoE), an electric line, a battery, a rechargeable battery, and the like.

As such, the water resource information (consisting of the observation information and facility information) collected by the USN communication node 110 is transmitted to the central control center 300 by the USN gateway 120. The central control center 300 collects and processes the water resource information observed from the USN communication node 110 installed in each water supply facility 200.

Figure 3 shows another embodiment of a water information integrated management method according to the present invention. In the embodiment shown in FIG. 1, a system for transmitting information observed by the USN communication node 110 to the central control center 300 through the USN gateway 120 is illustrated. In addition, the management personnel of each local water facility 200 as well as the central control center 300 to carry out each of the management personnel through the wired / wireless network so that any abnormality occurring in the water facility 200 can be quickly detected. A signal transmitted from the USN communication node 110 or the USN gateway 120 in a corresponding representative zone to the mobile communication terminal 400, or a value transmitted from the USN communication node 110 or the USN gateway 120. By the central control center 300, it is preferable to notify such an abnormal state when it is determined that an abnormality has occurred, such as whether the water pipe of the region bursts, or the water quality of the region is suddenly polluted.

The present invention is not limited to the above-described embodiments, and the scope of application of the present invention is not limited to those of ordinary skill in the art to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Of course, various modifications can be made.

As described above, the USN-based water information integrated management method of the present invention is constructed by establishing an infrastructure based on a USN (Ubiquitous Sensor Network), that is, a network foundation for connecting information transmission between multi-measurement points for a specific monitoring target facility. It can accurately measure the location information of various facilities and various water resources information in real time, and can build a nationwide information transmission system using CDMA network, and comprehensively manage the data for remote integrated management and efficient management of national water resources information. There are possible advantages.

In addition, the USN-based integrated water management method of the present invention can not only improve the physical quantity measurement of water resources, but also monitor expensive equipment such as measurement equipment, satellite communication equipment, RTU, etc., which are provided in the management center. In addition to the safety management of damage, destruction, breakdown of the fields, there is a distinctive effect of enabling theft prevention.

In addition, since the present invention uses a wireless sensor network, it is not necessary to install a separate wiring or structure, so it can be installed relatively simply and economically, and at the same time, a wireless network infrastructure can be easily constructed at a low cost even after additional measurement point requirements. There is an additional effect that you can. In addition, the central control center can monitor the abnormality of the observation point to manage water facilities in real time, save manpower, time and budget for facility management, measurement and data processing, and quickly recognize changes in water facilities. Therefore, there is an advantage of preventing or minimizing disaster damage by appropriately responding to disasters such as water pollution and water pipe damage. In addition, it has the effect of improving the national competitiveness by securing the foundation to apply such new technology wireless sensor network infrastructure to national public resources nationwide.

Claims (10)

a) measuring water resource information by a USN (Ubiquitous Sensor Network) communication node fixedly attached to a water facility and assigned with a unique tag ID to include an individually distinguishable sensor module to periodically transmit a signal; b) collecting, by the USN gateway, signals transmitted from at least one or more of the USN communication nodes through an ad-hoc network or mesh network technology; c) an operation for water resource information transmitted from the USN gateway using at least one selected from a CDMA network, a WDMA network, or a LAN network is performed by a central control center implemented by arithmetic processing means including a server computer; Calculating water resource information on the location of the water facility in real time, and storing and managing the calculated information; d) confirming, by the mobile communication terminal, information transmitted and connected from the USN gateway and the central control center to at least one selected from a CDMA network, a WDMA network or a LAN network; It is made, including, the water resource information Facility information including at least one selected from illuminance, temperature, humidity, vibration, or ultrasonic conditions of the water supply facility; Observation information further comprising at least one selected from the measurement time and flow rate, flow rate, water level, water temperature, water pressure, turbidity or concentration of the specific material of the tap water USN-based water information integrated management method comprising a. delete delete delete delete delete delete delete delete The method of claim 1, wherein the water resource information USN-based water information integrated management method characterized in that the transmission and storage periodically, the cycle can be programmed differently according to the user's purpose.

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